<?php

namespace App\Classes\Modules\Segments\Processors;

use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use App\Http\Resources\ConstantResource;
use App\Classes\ValueObjects\Constants\SegmentConstants;
use App\Classes\Modules\Segments\Services\FetchesSegment;
use App\Classes\General\Abstracts\AbstractControllerLogic;
use App\Classes\Modules\Segments\Services\FetchesConstant;
use App\Classes\Modules\Segments\Services\UpdatesConstant;
use App\Classes\Modules\Segments\Standards\Rules\CanUpdateConstant;
use App\Classes\Modules\Segments\DataTransferObjects\ConstantObject;
use App\Classes\Modules\Segments\Services\AddItemToConstantValueArray;
use App\Classes\Modules\Segments\Services\RemoveItemFromConstantValueArray;
use App\Classes\Exceptions\ResourceNotFoundException;
use App\Classes\Modules\Segments\Services\CreatesConstant;

class UpdatePostcodeSegmentProcessor
{
    /** @var CanUpdateConstant */
    private $canUpdateConstant;

    /** @var UpdatesConstant */
    private $updatesConstant;

    /** @var FetchesSegment */
    private $fetchesSegment;

    /** @var FetchesConstant */
    private $fetchesConstant;

    /** @var AddItemToConstantValueArray */
    private $addItemToConstantValueArray;

    /** @var RemoveItemFromConstantValueArray */
    private $removeItemFromConstantValueArray;

    /** @var CreatesConstant */
    private $createsConstant;
    /**
     * UpdatePostcodeSegmentProcessor constructor.
     * @param CanUpdateConstant $canUpdateConstant
     * @param UpdatesConstant $updatesConstant
     * @param FetchesSegment $fetchesSegment
     * @param FetchesConstant $fetchesConstant
     * @param AddItemToConstantValueArray $addItemToConstantValueArray
     * @param CreatesConstant $createsConstant
     * @param RemoveItemFromConstantValueArray $removeItemFromConstantValueArray
     */
    public function __construct(
        CanUpdateConstant $canUpdateConstant, 
        UpdatesConstant $updatesConstant, 
        FetchesSegment $fetchesSegment, 
        FetchesConstant $fetchesConstant,
        AddItemToConstantValueArray $addItemToConstantValueArray, 
        RemoveItemFromConstantValueArray $removeItemFromConstantValueArray,
        CreatesConstant $createsConstant
    )
    {
        $this->canUpdateConstant = $canUpdateConstant;
        $this->updatesConstant = $updatesConstant;
        $this->fetchesSegment = $fetchesSegment;
        $this->fetchesConstant = $fetchesConstant;
        $this->addItemToConstantValueArray = $addItemToConstantValueArray;
        $this->removeItemFromConstantValueArray = $removeItemFromConstantValueArray;
        $this->createsConstant = $createsConstant;
    }


    /**
     * @param string $name
     * @param int $companyModuleId
     * @throws \App\Classes\Exceptions\AccessForbiddenException
     * @throws \App\Classes\Exceptions\MalformedRequestException
     * @throws \App\Classes\Exceptions\RequestValidationException
     */
    public function execute($segment_id, $reference, $postcode){

        $segment = $this->fetchesSegment->execute(['id' => $segment_id]);

        try {
            $constant = $this->fetchesConstant->execute(['segment_id' => $segment->id, 'reference' => $reference]);

            $constantValue = $this->addItemToConstantValueArray->execute($constant->value, $postcode);

            $object = new ConstantObject($reference, $constantValue);

        } catch (ResourceNotFoundException $exception){

            $constantObject = [$postcode];

            $object = new ConstantObject(
                $reference,
                $constantObject
            );

            $constant = $this->createsConstant->execute($segment, $object);
        }

        try {
            // check if postcode exist in the opposite constant, and delete it
            $oppositeConstant = $this->fetchesConstant->execute(['segment_id' => $segment->id, 'reference' => $reference == SegmentConstants::CENTER_POSTCODE ? SegmentConstants::OUTSTATION_POSTCODE : SegmentConstants::CENTER_POSTCODE]);

            $oppositeConstantValue = $this->removeItemFromConstantValueArray->execute($oppositeConstant->value, $postcode);

            $oppositeObject = new ConstantObject($reference == SegmentConstants::CENTER_POSTCODE ? SegmentConstants::OUTSTATION_POSTCODE : SegmentConstants::CENTER_POSTCODE, $oppositeConstantValue);

            $this->updatesConstant->execute($oppositeConstant, $oppositeObject);

        } catch (ResourceNotFoundException $exception){
            // if opposite constant does not exist, do nothing
        }

        $constant = $this->updatesConstant->execute($constant, $object);

        return $constant;

    }

}